Schneider, Nikolaus.<em><a href="http://cdli.ucla.edu/Tools/SignLists/UET2/index.html">Die Keilscriftzeichen der Wirtschaftsurkunden von Ur III</a></em>.<em>Cuneiform Digital Library Initiative (CDLI): Tools and Sundries</em>.(Book)Grimal, Nicolas; Hallof, Jochen; van der Plas, Dirk.<em><a href="http://cdli.ucla.edu/Tools/SignLists/UET2/index.html">Hieroglyphica (hieroglyphic library of more than 6900 signs)</a></em>.Center fr Computer Aided Egyptological Research(Book)Deimel, A.<em><a href="http://cdli.ucla.edu/Tools/SignLists/UET2/index.html">Liste der archaischen Keilschriftzeichen</a></em>.<em>Cuneiform Digital Library Initiative (CDLI): Tools and Sundries</em>.(Book)Rosengarten, Yvonne.<em><a href="http://cdli.ucla.edu/Tools/SignLists/UET2/index.html">Répertoire commenté des signes présargoniques sumériens de Lagas</a></em>.<em>Cuneiform Digital Library Initiative (CDLI): Tools and Sundries</em>.(Book)Burrows, E.<em><a href="http://cdli.ucla.edu/Tools/SignLists/UET2/index.html">Ur Excavation Texts II: Archaic Texts: Sign List</a></em>.<em>Cuneiform Digital Library Initiative (CDLI): Tools and Sundries</em>.(Book)